Chiriches play not just defensive role (good tackling,good marking,good positioning),also make OFFENSIVE tactic always comes out from defense,running with ball at his feet, in dribbling,THAT WAS the reason of AVB when he said:"i like this type of central defender,that assume also offensive role like defender,not just making only defense,and Chiriches at his age (23) looking very mature,i watched him 1 year under scouting ,he had many good matches for Steaua,i think he will help Tottenham now ,like he did for Steaua"... (in 2013 won domestic title,16 points ahead from the second place in the rank of romanian first league in the end)I really doubt any of us, except maybe Dan, has seen Chiriches enough to assess if he's really better than Daws. That'll be down to AVB and as much as I like Daws, he may have to make way if it's for the good of the team.
On short is that type of player making offensive role, not just defensive assignments,and for a defender that mean a lot of skills to make that...
in my opinion,he was tranfered to make couple with Vertonghen in centre of defense